Counting blanks between values and reporting individually

I have a very large table representing operations at different times, scattered with numbers but populated mostly with blanks.
It looks something like this,

A      B     C
1      

        1     1

1
        2
1

              1

4
Total.................

I want to do some statistical analysis on the time between operations so I am hoping to produce a second table below the first that lists the number of blanks in each gap, sequentially for each column.
Something like this,

        A       B      C
Gap 1   3       2      2
Gap 2   1       2      5
Gap 3   3

I know what the maximum number of gaps is, but the number of gaps in each column varies.
Can anyone think of a way to achieve this?